People don't often think about how they get from one place to another, but somewhere along the line, someone spent a lot of time coming up with the idea for that car, train, or bus. For all the modes of transportation we see and use every day, there are countless others that are less common or didn't take off. Some of these ideas may be hard to believe, but imaginative readers will get to take a ride on these offbeat inventions that, at least at one point in time, actually existed.